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147900 = 223521729
BaseRepresentation
bin100100000110111100
321111212210
4210012330
514213100
63100420
71154124
oct440674
9244783
10147900
11a1135
1271710
135241c
143bc84
152dc50
hex241bc

147900 has 72 divisors (see below), whose sum is σ = 468720. Its totient is φ = 35840.

The previous prime is 147881. The next prime is 147919. The reversal of 147900 is 9741.

Adding to 147900 its reverse (9741), we get a triangular number (157641 = T561).

It is an interprime number because it is at equal distance from previous prime (147881) and next prime (147919).

It is a congruent number.

It is an unprimeable number.

147900 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5086 + ... + 5114.

It is an arithmetic number, because the mean of its divisors is an integer number (6510).

2147900 is an apocalyptic number.

147900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234360).

147900 is an abundant number, since it is smaller than the sum of its proper divisors (320820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147900 is a wasteful number, since it uses less digits than its factorization.

147900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 147900 is about 384.5776904606. The cubic root of 147900 is about 52.8838085912.

The spelling of 147900 in words is "one hundred forty-seven thousand, nine hundred".